Method of treating shingles and the like



p 1930- J. A. MCKERCHER 1,756,373

METHOD OF TREATING SHINGLES AND THE LIKE Filed Jan. 25, 1928 INVENTOR JOSEPH 19. MK ER CHER Patented Apr. 29,- 1930 UNITED STATES PATENT? OFFICE" J METHQD OFTREATING SHINGLES AND THE LIKE Applicatio'n filed January 23, 1928, Serial No. 248,943, and in Canada November 22, 1927.

My invention relates to a method of treating shingles and the like subsequent to their being painted or stained. The object of the invention is to remove therefrom any surplus liquid, to distribute that which has remained thereon and to generally improve its appearance. A further and important object is to so prepare the material treated, that it may be packed in bundles or in any other suitable form almost immediately after treatment without danger of one piece adhering to another or the treated surface becoming marred.

The invention which consists of removing the surplus liquid from the material treated and subsequently mopping or stippling its surface, may be performed manually or by mechanical means such as that previously described in an application for United States Letters Patent filed by me on the 9th day of August, 1927, under vSerial Number 211,776.

For the purpose of more fully explaining the method employed, the said machine is herein shown and described.

Fig. 1 being a side elevation.

Fig. 2 being a front elevation.

In the draw ngs like characters of reference indicate corresponding parts in each figure.

The driving motor is indicated by the numeral 3, the worm spindle 4: and a main driving sprocket wheel 5. This driving gear be ing carried by the top member 6 of the supporting framework, the side or end frames ,35 7 of which support the bearings for the spindles 8 of the horizontal rolls 9. These latter are covered with carpet over the whole of their circular surfaces and are driven in opposite directions by a chain.

A double row of brushes 10 extends between the two end frames 7 being placed with their bristles opposite so, that the shingles maybe inserted between them. The spindle 4 of the lower carpeted roll carries on its ex- 5 tremity two chain sprocket wheels 11 and 12. The former is in engagement with the motor driven sprocket wheel 5 by the driving chain 13 and the latter rotates the upper cylindrical roll 9 by its sprocket wheel 14 by the driving chain 15 which is kept in suitable tension by the fixed idler 16 and the adjustable idler 17 the latter being supported by the lever 18 under the influence of the sprmg 19.

When desired for improving the character of the painting work, one of the rows of brushes 10 may be made to give a slight os-. cillating motion by connection to the cam lever 20 acting in conjunction with the revolving side cam 21 and against the action of the spring 22 which gives the return mo tion to the brush carrier.

An operating bench across the front of the framework is shown at 23 and a receptacle bench upon which the finished shingles are delivered is shown at 24.

The method of treating shingles subsequent to dipping them in a suitable paint or stain is to enter them with their tips, or thin ends, foremost between the opposed brushes 10 which cause any free liquid to be brushed 7 0 longitudinally of the wood, spreading such liquid evenly and causing it to enter the grain of the wood in such 'a manner that air bubbles or other similar defects are elminated. If the upper brush is caused to oscillate by the cam motion provided, a more vigorous brushing action is applied to the upper side of the shingle than prevails when the brushes are held stationary. When the ti of a shin le has passed far enough throug between t e brushes as to form a contact with. the roll 9, the shingle becomes gripped thereby and is fed through the machine by the rotation of said rolls. The carpet coating of the rolls serves to provide a suitable grip of the shingle and produce a squeezing effect which forces the liquid into the pores of the wood and to increase the impregnation thereof to a greater extent than would be possible with the use of brushes. This increased pressure and the subsequent stippling effect due to the removal of the carpet pile from the wood surface tends to aerate the remaining liquid, promoting rapid oxidation thereof, thereby leaving the treated material capable of being freely handled without danger of being marred or otherwise damaged.-

It will therefore be seen that I have invented a method of treating'stained or painted shingles and the like, which removes all surplus liquid from them and renders them fit for immediate handling in quick and efi'ec tive manner, whereby they may be immediately packed and shipped to any desired destination.

What I claim as my invention is:

r 1. The method of treating shingles and the like immediately following their being dipped in paint or stain which consists in brushing the dipped surface in a zig zag manner in the general direction of the grain and then subjecting said surface to the stippling action of a carpet covered roller.

2. The method of treating shingles and the like immediately following their being dipped in paint or stain which consists in passing each article between opposed brushes whereby surplus liquid is adapted to be removed and of subsequently passing said article between circular carpet covered stippling rolls whereby pressure is applied to the surfaces of the articles.

3. The method of treating shingles and the like immediately following their being dipped in paint or stain which consists in passing each article between opposed brushes whereby surplus liquid is adapted to be removed and in subsequently passing said ar- .ticle between circular carpet covered stippling rolls whereby pressure is applied to the surfaces of the articles.

Dated at Vancouver, B. (3., this 29th day of December, 1927.

JOSEPH A. MCKERCHER. 

